/*
* Copyright (C) 2013-2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <ctype.h>
#include <dirent.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <gtest/gtest.h>
#include <log/log.h>
#include <log/logger.h>
#include <log/log_read.h>
#define BIG_BUFFER (5 * 1024)
// enhanced version of LOG_FAILURE_RETRY to add support for EAGAIN and
// non-syscall libs. Since we are only using this in the emergency of
// a signal to stuff a terminating code into the logs, we will spin rather
// than try a usleep.
#define LOG_FAILURE_RETRY(exp) ({ \
typeof (exp) _rc; \
do { \
_rc = (exp); \
} while (((_rc == -1) \
&& ((errno == EINTR) \
|| (errno == EAGAIN))) \
|| (_rc == -EINTR) \
|| (_rc == -EAGAIN)); \
_rc; })
static const char begin[] = "--------- beginning of ";
TEST(logcat, buckets) {
FILE *fp;
ASSERT_TRUE(NULL != (fp = popen(
"logcat -b radio -b events -b system -b main -d 2>/dev/null",
"r")));
char buffer[BIG_BUFFER];
int ids = 0;
int count = 0;
while (fgets(buffer, sizeof(buffer), fp)) {
if (!strncmp(begin, buffer, sizeof(begin) - 1)) {
while (char *cp = strrchr(buffer, '\n')) {
*cp = '\0';
}
log_id_t id = android_name_to_log_id(buffer + sizeof(begin) - 1);
ids |= 1 << id;
++count;
}
}
pclose(fp);
EXPECT_EQ(15, ids);
EXPECT_EQ(4, count);
}
TEST(logcat, year) {
if (android_log_clockid() == CLOCK_MONOTONIC) {
fprintf(stderr, "Skipping test, logd is monotonic time\n");
return;
}
FILE *fp;
char needle[32];
time_t now;
time(&now);
struct tm *ptm;
#if !defined(_WIN32)
struct tm tmBuf;
ptm = localtime_r(&now, &tmBuf);
#else
ptm = localtime(&&now);
#endif
strftime(needle, sizeof(needle), "[ %Y-", ptm);
ASSERT_TRUE(NULL != (fp = popen(
"logcat -v long -v year -b all -t 3 2>/dev/null",
"r")));
char buffer[BIG_BUFFER];
int count = 0;
while (fgets(buffer, sizeof(buffer), fp)) {
if (!strncmp(buffer, needle, strlen(needle))) {
++count;
}
}
pclose(fp);
ASSERT_EQ(3, count);
}
// Return a pointer to each null terminated -v long time field.
char *fgetLongTime(char *buffer, size_t buflen, FILE *fp) {
while (fgets(buffer, buflen, fp)) {
char *cp = buffer;
if (*cp != '[') {
continue;
}
while (*++cp == ' ') {
;
}
char *ep = cp;
while (isdigit(*ep)) {
++ep;
}
if ((*ep != '-') && (*ep != '.')) {
continue;
}
// Find PID field
while (((ep = strchr(ep, ':'))) && (*++ep != ' ')) {
;
}
if (!ep) {
continue;
}
ep -= 7;
*ep = '\0';
return cp;
}
return NULL;
}
TEST(logcat, tz) {
if (android_log_clockid() == CLOCK_MONOTONIC) {
fprintf(stderr, "Skipping test, logd is monotonic time\n");
return;
}
int tries = 3; // in case run too soon after system start or buffer clear
int count;
do {
FILE *fp;
ASSERT_TRUE(NULL != (fp = popen(
"logcat -v long -v America/Los_Angeles -b all -t 3 2>/dev/null",
"r")));
char buffer[BIG_BUFFER];
count = 0;
while (fgetLongTime(buffer, sizeof(buffer), fp)) {
if (strstr(buffer, " -0700") || strstr(buffer, " -0800")) {
++count;
}
}
pclose(fp);
} while ((count < 3) && --tries && (sleep(1), true));
ASSERT_EQ(3, count);
}
TEST(logcat, ntz) {
FILE *fp;
ASSERT_TRUE(NULL != (fp = popen(
"logcat -v long -v America/Los_Angeles -v zone -b all -t 3 2>/dev/null",
"r")));
char buffer[BIG_BUFFER];
int count = 0;
while (fgetLongTime(buffer, sizeof(buffer), fp)) {
if (strstr(buffer, " -0700") || strstr(buffer, " -0800")) {
++count;
}
}
pclose(fp);
ASSERT_EQ(0, count);
}
void do_tail(int num) {
int tries = 3; // in case run too soon after system start or buffer clear
int count;
do {
char buffer[BIG_BUFFER];
snprintf(buffer, sizeof(buffer),
"logcat -v long -b radio -b events -b system -b main -t %d 2>/dev/null",
num);
FILE *fp;
ASSERT_TRUE(NULL != (fp = popen(buffer, "r")));
count = 0;
while (fgetLongTime(buffer, sizeof(buffer), fp)) {
++count;
}
pclose(fp);
} while ((count < num) && --tries && (sleep(1), true));
ASSERT_EQ(num, count);
}
TEST(logcat, tail_3) {
do_tail(3);
}
TEST(logcat, tail_10) {
do_tail(10);
}
TEST(logcat, tail_100) {
do_tail(100);
}
TEST(logcat, tail_1000) {
do_tail(1000);
}
TEST(logcat, tail_time) {
FILE *fp;
ASSERT_TRUE(NULL != (fp = popen("logcat -v long -b all -t 10 2>&1", "r")));
char buffer[BIG_BUFFER];
char *last_timestamp = NULL;
char *first_timestamp = NULL;
int count = 0;
char *cp;
while ((cp = fgetLongTime(buffer, sizeof(buffer), fp))) {
++count;
if (!first_timestamp) {
first_timestamp = strdup(cp);
}
free(last_timestamp);
last_timestamp = strdup(cp);
}
pclose(fp);
EXPECT_EQ(10, count);
EXPECT_TRUE(last_timestamp != NULL);
EXPECT_TRUE(first_timestamp != NULL);
snprintf(buffer, sizeof(buffer), "logcat -v long -b all -t '%s' 2>&1",
first_timestamp);
ASSERT_TRUE(NULL != (fp = popen(buffer, "r")));
int second_count = 0;
int last_timestamp_count = -1;
while ((cp = fgetLongTime(buffer, sizeof(buffer), fp))) {
++second_count;
if (first_timestamp) {
// we can get a transitory *extremely* rare failure if hidden
// underneath the time is *exactly* XX-XX XX:XX:XX.XXX000000
EXPECT_STREQ(cp, first_timestamp);
free(first_timestamp);
first_timestamp = NULL;
}
if (!strcmp(cp, last_timestamp)) {
last_timestamp_count = second_count;
}
}
pclose(fp);
free(last_timestamp);
last_timestamp = NULL;
free(first_timestamp);
EXPECT_TRUE(first_timestamp == NULL);
EXPECT_LE(count, second_count);
EXPECT_LE(count, last_timestamp_count);
}
TEST(logcat, End_to_End) {
pid_t pid = getpid();
log_time ts(CLOCK_MONOTONIC);
ASSERT_LT(0, __android_log_btwrite(0, EVENT_TYPE_LONG, &ts, sizeof(ts)));
FILE *fp;
ASSERT_TRUE(NULL != (fp = popen(
"logcat -v brief -b events -t 100 2>/dev/null",
"r")));
char buffer[BIG_BUFFER];
int count = 0;
while (fgets(buffer, sizeof(buffer), fp)) {
int p;
unsigned long long t;
if ((2 != sscanf(buffer, "I/[0] ( %d): %llu", &p, &t))
|| (p != pid)) {
continue;
}
log_time tx((const char *) &t);
if (ts == tx) {
++count;
}
}
pclose(fp);
ASSERT_EQ(1, count);
}
int get_groups(const char *cmd) {
FILE *fp;
// NB: crash log only available in user space
EXPECT_TRUE(NULL != (fp = popen(cmd, "r")));
if (fp == NULL) {
return 0;
}
char buffer[BIG_BUFFER];
int count = 0;
while (fgets(buffer, sizeof(buffer), fp)) {
int size, consumed, max, payload;
char size_mult[3], consumed_mult[3];
long full_size, full_consumed;
size = consumed = max = payload = 0;
// NB: crash log can be very small, not hit a Kb of consumed space
// doubly lucky we are not including it.
if (6 != sscanf(buffer, "%*s ring buffer is %d%2s (%d%2s consumed),"
" max entry is %db, max payload is %db",
&size, size_mult, &consumed, consumed_mult,
&max, &payload)) {
fprintf(stderr, "WARNING: Parse error: %s", buffer);
continue;
}
full_size = size;
switch(size_mult[0]) {
case 'G':
full_size *= 1024;
/* FALLTHRU */
case 'M':
full_size *= 1024;
/* FALLTHRU */
case 'K':
full_size *= 1024;
/* FALLTHRU */
case 'b':
break;
}
full_consumed = consumed;
switch(consumed_mult[0]) {
case 'G':
full_consumed *= 1024;
/* FALLTHRU */
case 'M':
full_consumed *= 1024;
/* FALLTHRU */
case 'K':
full_consumed *= 1024;
/* FALLTHRU */
case 'b':
break;
}
EXPECT_GT((full_size * 9) / 4, full_consumed);
EXPECT_GT(full_size, max);
EXPECT_GT(max, payload);
if ((((full_size * 9) / 4) >= full_consumed)
&& (full_size > max)
&& (max > payload)) {
++count;
}
}
pclose(fp);
return count;
}
TEST(logcat, get_size) {
ASSERT_EQ(4, get_groups(
"logcat -v brief -b radio -b events -b system -b main -g 2>/dev/null"));
}
// duplicate test for get_size, but use comma-separated list of buffers
TEST(logcat, multiple_buffer) {
ASSERT_EQ(4, get_groups(
"logcat -v brief -b radio,events,system,main -g 2>/dev/null"));
}
TEST(logcat, bad_buffer) {
ASSERT_EQ(0, get_groups(
"logcat -v brief -b radio,events,bogo,system,main -g 2>/dev/null"));
}
static void caught_blocking(int /*signum*/)
{
unsigned long long v = 0xDEADBEEFA55A0000ULL;
v += getpid() & 0xFFFF;
LOG_FAILURE_RETRY(__android_log_btwrite(0, EVENT_TYPE_LONG, &v, sizeof(v)));
}
TEST(logcat, blocking) {
FILE *fp;
unsigned long long v = 0xDEADBEEFA55F0000ULL;
pid_t pid = getpid();
v += pid & 0xFFFF;
LOG_FAILURE_RETRY(__android_log_btwrite(0, EVENT_TYPE_LONG, &v, sizeof(v)));
v &= 0xFFFFFFFFFFFAFFFFULL;
ASSERT_TRUE(NULL != (fp = popen(
"( trap exit HUP QUIT INT PIPE KILL ; sleep 6; echo DONE )&"
" logcat -v brief -b events 2>&1",
"r")));
char buffer[BIG_BUFFER];
int count = 0;
int signals = 0;
signal(SIGALRM, caught_blocking);
alarm(2);
while (fgets(buffer, sizeof(buffer), fp)) {
if (!strncmp(buffer, "DONE", 4)) {
break;
}
++count;
int p;
unsigned long long l;
if ((2 != sscanf(buffer, "I/[0] ( %u): %lld", &p, &l))
|| (p != pid)) {
continue;
}
if (l == v) {
++signals;
break;
}
}
alarm(0);
signal(SIGALRM, SIG_DFL);
// Generate SIGPIPE
fclose(fp);
caught_blocking(0);
pclose(fp);
EXPECT_LE(2, count);
EXPECT_EQ(1, signals);
}
static void caught_blocking_tail(int /*signum*/)
{
unsigned long long v = 0xA55ADEADBEEF0000ULL;
v += getpid() & 0xFFFF;
LOG_FAILURE_RETRY(__android_log_btwrite(0, EVENT_TYPE_LONG, &v, sizeof(v)));
}
TEST(logcat, blocking_tail) {
FILE *fp;
unsigned long long v = 0xA55FDEADBEEF0000ULL;
pid_t pid = getpid();
v += pid & 0xFFFF;
LOG_FAILURE_RETRY(__android_log_btwrite(0, EVENT_TYPE_LONG, &v, sizeof(v)));
v &= 0xFFFAFFFFFFFFFFFFULL;
ASSERT_TRUE(NULL != (fp = popen(
"( trap exit HUP QUIT INT PIPE KILL ; sleep 6; echo DONE )&"
" logcat -v brief -b events -T 5 2>&1",
"r")));
char buffer[BIG_BUFFER];
int count = 0;
int signals = 0;
signal(SIGALRM, caught_blocking_tail);
alarm(2);
while (fgets(buffer, sizeof(buffer), fp)) {
if (!strncmp(buffer, "DONE", 4)) {
break;
}
++count;
int p;
unsigned long long l;
if ((2 != sscanf(buffer, "I/[0] ( %u): %lld", &p, &l))
|| (p != pid)) {
continue;
}
if (l == v) {
if (count >= 5) {
++signals;
}
break;
}
}
alarm(0);
signal(SIGALRM, SIG_DFL);
// Generate SIGPIPE
fclose(fp);
caught_blocking_tail(0);
pclose(fp);
EXPECT_LE(2, count);
EXPECT_EQ(1, signals);
}
TEST(logcat, logrotate) {
static const char form[] = "/data/local/tmp/logcat.logrotate.XXXXXX";
char buf[sizeof(form)];
ASSERT_TRUE(NULL != mkdtemp(strcpy(buf, form)));
static const char comm[] = "logcat -b radio -b events -b system -b main"
" -d -f %s/log.txt -n 7 -r 1";
char command[sizeof(buf) + sizeof(comm)];
snprintf(command, sizeof(command), comm, buf);
int ret;
EXPECT_FALSE((ret = system(command)));
if (!ret) {
snprintf(command, sizeof(command), "ls -s %s 2>/dev/null", buf);
FILE *fp;
EXPECT_TRUE(NULL != (fp = popen(command, "r")));
if (fp) {
char buffer[BIG_BUFFER];
int count = 0;
while (fgets(buffer, sizeof(buffer), fp)) {
static const char total[] = "total ";
int num;
char c;
if ((2 == sscanf(buffer, "%d log.tx%c", &num, &c)) &&
(num <= 40)) {
++count;
} else if (strncmp(buffer, total, sizeof(total) - 1)) {
fprintf(stderr, "WARNING: Parse error: %s", buffer);
}
}
pclose(fp);
if ((count != 7) && (count != 8)) {
fprintf(stderr, "count=%d\n", count);
}
EXPECT_TRUE(count == 7 || count == 8);
}
}
snprintf(command, sizeof(command), "rm -rf %s", buf);
EXPECT_FALSE(system(command));
}
TEST(logcat, logrotate_suffix) {
static const char tmp_out_dir_form[] = "/data/local/tmp/logcat.logrotate.XXXXXX";
char tmp_out_dir[sizeof(tmp_out_dir_form)];
ASSERT_TRUE(NULL != mkdtemp(strcpy(tmp_out_dir, tmp_out_dir_form)));
static const char logcat_cmd[] = "logcat -b radio -b events -b system -b main"
" -d -f %s/log.txt -n 10 -r 1";
char command[sizeof(tmp_out_dir) + sizeof(logcat_cmd)];
snprintf(command, sizeof(command), logcat_cmd, tmp_out_dir);
int ret;
EXPECT_FALSE((ret = system(command)));
if (!ret) {
snprintf(command, sizeof(command), "ls %s 2>/dev/null", tmp_out_dir);
FILE *fp;
EXPECT_TRUE(NULL != (fp = popen(command, "r")));
char buffer[BIG_BUFFER];
int log_file_count = 0;
while (fgets(buffer, sizeof(buffer), fp)) {
static const char rotated_log_filename_prefix[] = "log.txt.";
static const size_t rotated_log_filename_prefix_len =
strlen(rotated_log_filename_prefix);
static const char log_filename[] = "log.txt";
if (!strncmp(buffer, rotated_log_filename_prefix, rotated_log_filename_prefix_len)) {
// Rotated file should have form log.txt.##
char* rotated_log_filename_suffix = buffer + rotated_log_filename_prefix_len;
char* endptr;
const long int suffix_value = strtol(rotated_log_filename_suffix, &endptr, 10);
EXPECT_EQ(rotated_log_filename_suffix + 2, endptr);
EXPECT_LE(suffix_value, 10);
EXPECT_GT(suffix_value, 0);
++log_file_count;
continue;
}
if (!strncmp(buffer, log_filename, strlen(log_filename))) {
++log_file_count;
continue;
}
fprintf(stderr, "ERROR: Unexpected file: %s", buffer);
ADD_FAILURE();
}
pclose(fp);
EXPECT_EQ(11, log_file_count);
}
snprintf(command, sizeof(command), "rm -rf %s", tmp_out_dir);
EXPECT_FALSE(system(command));
}
TEST(logcat, logrotate_continue) {
static const char tmp_out_dir_form[] = "/data/local/tmp/logcat.logrotate.XXXXXX";
char tmp_out_dir[sizeof(tmp_out_dir_form)];
ASSERT_TRUE(NULL != mkdtemp(strcpy(tmp_out_dir, tmp_out_dir_form)));
static const char log_filename[] = "log.txt";
static const char logcat_cmd[] = "logcat -b all -d -f %s/%s -n 256 -r 1024";
static const char cleanup_cmd[] = "rm -rf %s";
char command[sizeof(tmp_out_dir) + sizeof(logcat_cmd) + sizeof(log_filename)];
snprintf(command, sizeof(command), logcat_cmd, tmp_out_dir, log_filename);
int ret;
EXPECT_FALSE((ret = system(command)));
if (ret) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
FILE *fp;
snprintf(command, sizeof(command), "%s/%s", tmp_out_dir, log_filename);
EXPECT_TRUE(NULL != ((fp = fopen(command, "r"))));
if (!fp) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
char *line = NULL;
char *last_line = NULL; // this line is allowed to stutter, one-line overlap
char *second_last_line = NULL;
size_t len = 0;
while (getline(&line, &len, fp) != -1) {
free(second_last_line);
second_last_line = last_line;
last_line = line;
line = NULL;
}
fclose(fp);
free(line);
if (second_last_line == NULL) {
fprintf(stderr, "No second to last line, using last, test may fail\n");
second_last_line = last_line;
last_line = NULL;
}
free(last_line);
EXPECT_TRUE(NULL != second_last_line);
if (!second_last_line) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
// re-run the command, it should only add a few lines more content if it
// continues where it left off.
snprintf(command, sizeof(command), logcat_cmd, tmp_out_dir, log_filename);
EXPECT_FALSE((ret = system(command)));
if (ret) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
DIR *dir;
EXPECT_TRUE(NULL != (dir = opendir(tmp_out_dir)));
if (!dir) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
struct dirent *entry;
unsigned count = 0;
while ((entry = readdir(dir))) {
if (strncmp(entry->d_name, log_filename, sizeof(log_filename) - 1)) {
continue;
}
snprintf(command, sizeof(command), "%s/%s", tmp_out_dir, entry->d_name);
EXPECT_TRUE(NULL != ((fp = fopen(command, "r"))));
if (!fp) {
fprintf(stderr, "%s ?\n", command);
continue;
}
line = NULL;
size_t number = 0;
while (getline(&line, &len, fp) != -1) {
++number;
if (!strcmp(line, second_last_line)) {
EXPECT_TRUE(++count <= 1);
fprintf(stderr, "%s(%zu):\n", entry->d_name, number);
}
}
fclose(fp);
free(line);
unlink(command);
}
closedir(dir);
if (count > 1) {
char *brk = strpbrk(second_last_line, "\r\n");
if (!brk) {
brk = second_last_line + strlen(second_last_line);
}
fprintf(stderr, "\"%.*s\" occured %u times\n",
(int)(brk - second_last_line), second_last_line, count);
}
free(second_last_line);
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
}
TEST(logcat, logrotate_clear) {
static const char tmp_out_dir_form[] = "/data/local/tmp/logcat.logrotate.XXXXXX";
char tmp_out_dir[sizeof(tmp_out_dir_form)];
ASSERT_TRUE(NULL != mkdtemp(strcpy(tmp_out_dir, tmp_out_dir_form)));
static const char log_filename[] = "log.txt";
static const unsigned num_val = 32;
static const char logcat_cmd[] = "logcat -b all -d -f %s/%s -n %d -r 1";
static const char clear_cmd[] = " -c";
static const char cleanup_cmd[] = "rm -rf %s";
char command[sizeof(tmp_out_dir) + sizeof(logcat_cmd) + sizeof(log_filename) + sizeof(clear_cmd) + 32];
// Run command with all data
{
snprintf(command, sizeof(command) - sizeof(clear_cmd),
logcat_cmd, tmp_out_dir, log_filename, num_val);
int ret;
EXPECT_FALSE((ret = system(command)));
if (ret) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(tmp_out_dir), closedir);
EXPECT_NE(nullptr, dir);
if (!dir) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
struct dirent *entry;
unsigned count = 0;
while ((entry = readdir(dir.get()))) {
if (strncmp(entry->d_name, log_filename, sizeof(log_filename) - 1)) {
continue;
}
++count;
}
EXPECT_EQ(count, num_val + 1);
}
{
// Now with -c option tacked onto the end
strcat(command, clear_cmd);
int ret;
EXPECT_FALSE((ret = system(command)));
if (ret) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(tmp_out_dir), closedir);
EXPECT_NE(nullptr, dir);
if (!dir) {
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
return;
}
struct dirent *entry;
unsigned count = 0;
while ((entry = readdir(dir.get()))) {
if (strncmp(entry->d_name, log_filename, sizeof(log_filename) - 1)) {
continue;
}
fprintf(stderr, "Found %s/%s!!!\n", tmp_out_dir, entry->d_name);
++count;
}
EXPECT_EQ(count, 0U);
}
snprintf(command, sizeof(command), cleanup_cmd, tmp_out_dir);
EXPECT_FALSE(system(command));
}
TEST(logcat, logrotate_nodir) {
// expect logcat to error out on writing content and exit(1) for nodir
EXPECT_EQ(W_EXITCODE(1, 0),
system("logcat -b all -d"
" -f /das/nein/gerfingerpoken/logcat/log.txt"
" -n 256 -r 1024"));
}
static void caught_blocking_clear(int /*signum*/) {
unsigned long long v = 0xDEADBEEFA55C0000ULL;
v += getpid() & 0xFFFF;
LOG_FAILURE_RETRY(__android_log_btwrite(0, EVENT_TYPE_LONG, &v, sizeof(v)));
}
TEST(logcat, blocking_clear) {
FILE *fp;
unsigned long long v = 0xDEADBEEFA55C0000ULL;
pid_t pid = getpid();
v += pid & 0xFFFF;
// This test is racey; an event occurs between clear and dump.
// We accept that we will get a false positive, but never a false negative.
ASSERT_TRUE(NULL != (fp = popen(
"( trap exit HUP QUIT INT PIPE KILL ; sleep 6; echo DONE )&"
" logcat -b events -c 2>&1 ;"
" logcat -v brief -b events 2>&1",
"r")));
char buffer[BIG_BUFFER];
int count = 0;
int signals = 0;
signal(SIGALRM, caught_blocking_clear);
alarm(2);
while (fgets(buffer, sizeof(buffer), fp)) {
if (!strncmp(buffer, "clearLog: ", 10)) {
fprintf(stderr, "WARNING: Test lacks permission to run :-(\n");
count = signals = 1;
break;
}
if (!strncmp(buffer, "DONE", 4)) {
break;
}
++count;
int p;
unsigned long long l;
if ((2 != sscanf(buffer, "I/[0] ( %u): %lld", &p, &l))
|| (p != pid)) {
continue;
}
if (l == v) {
if (count > 1) {
fprintf(stderr, "WARNING: Possible false positive\n");
}
++signals;
break;
}
}
alarm(0);
signal(SIGALRM, SIG_DFL);
// Generate SIGPIPE
fclose(fp);
caught_blocking_clear(0);
pclose(fp);
EXPECT_LE(1, count);
EXPECT_EQ(1, signals);
}
static bool get_white_black(char **list) {
FILE *fp;
fp = popen("logcat -p 2>/dev/null", "r");
if (fp == NULL) {
fprintf(stderr, "ERROR: logcat -p 2>/dev/null\n");
return false;
}
char buffer[BIG_BUFFER];
while (fgets(buffer, sizeof(buffer), fp)) {
char *hold = *list;
char *buf = buffer;
while (isspace(*buf)) {
++buf;
}
char *end = buf + strlen(buf);
while (isspace(*--end) && (end >= buf)) {
*end = '\0';
}
if (end < buf) {
continue;
}
if (hold) {
asprintf(list, "%s %s", hold, buf);
free(hold);
} else {
asprintf(list, "%s", buf);
}
}
pclose(fp);
return *list != NULL;
}
static bool set_white_black(const char *list) {
FILE *fp;
char buffer[BIG_BUFFER];
snprintf(buffer, sizeof(buffer), "logcat -P '%s' 2>&1", list ? list : "");
fp = popen(buffer, "r");
if (fp == NULL) {
fprintf(stderr, "ERROR: %s\n", buffer);
return false;
}
while (fgets(buffer, sizeof(buffer), fp)) {
char *buf = buffer;
while (isspace(*buf)) {
++buf;
}
char *end = buf + strlen(buf);
while ((end > buf) && isspace(*--end)) {
*end = '\0';
}
if (end <= buf) {
continue;
}
fprintf(stderr, "%s\n", buf);
pclose(fp);
return false;
}
return pclose(fp) == 0;
}
TEST(logcat, white_black_adjust) {
char *list = NULL;
char *adjust = NULL;
get_white_black(&list);
static const char adjustment[] = "~! 300/20 300/25 2000 ~1000/5 ~1000/30";
ASSERT_EQ(true, set_white_black(adjustment));
ASSERT_EQ(true, get_white_black(&adjust));
EXPECT_STREQ(adjustment, adjust);
free(adjust);
adjust = NULL;
static const char adjustment2[] = "300/20 300/21 2000 ~1000";
ASSERT_EQ(true, set_white_black(adjustment2));
ASSERT_EQ(true, get_white_black(&adjust));
EXPECT_STREQ(adjustment2, adjust);
free(adjust);
adjust = NULL;
ASSERT_EQ(true, set_white_black(list));
get_white_black(&adjust);
EXPECT_STREQ(list ? list : "", adjust ? adjust : "");
free(adjust);
adjust = NULL;
free(list);
list = NULL;
}
TEST(logcat, regex) {
FILE *fp;
int count = 0;
char buffer[BIG_BUFFER];
snprintf(buffer, sizeof(buffer), "logcat --pid %d -d -e logcat_test_a+b", getpid());
LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test_ab"));
LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test_b"));
LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test_aaaab"));
LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test_aaaa"));
// Let the logs settle
sleep(1);
ASSERT_TRUE(NULL != (fp = popen(buffer, "r")));
while (fgets(buffer, sizeof(buffer), fp)) {
if (!strncmp(begin, buffer, sizeof(begin) - 1)) {
continue;
}
EXPECT_TRUE(strstr(buffer, "logcat_test_") != NULL);
count++;
}
pclose(fp);
ASSERT_EQ(2, count);
}
TEST(logcat, maxcount) {
FILE *fp;
int count = 0;
char buffer[BIG_BUFFER];
snprintf(buffer, sizeof(buffer), "logcat --pid %d -d --max-count 3", getpid());
LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test"));
LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test"));
LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test"));
LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test"));
// Let the logs settle
sleep(1);
ASSERT_TRUE(NULL != (fp = popen(buffer, "r")));
while (fgets(buffer, sizeof(buffer), fp)) {
if (!strncmp(begin, buffer, sizeof(begin) - 1)) {
continue;
}
count++;
}
pclose(fp);
ASSERT_EQ(3, count);
}